UV Protected Lenses BS EN ISO 12312-1:2013 Filter Category 3 (Dark for Bright Sunlight) Metal Frame Adjustable Nose piece Scratch-resistant acrylic lenses Available in +1.0 to +4.0 strengths in .25 increments Available in Black and Gold Frame (see other listings for gold frame) Unisex Tested to BS EN 14139:2010 Full measurements for this frame are in the pictures section We independently test our goods to ensure they are fit for sale in the UK and abroad